Momir Basic Event Deck
The Momir Basic Event Deck is an online-only product for use with the Momir Basic variant.  It was released in November 22, 2010.
||Battle with fearsome creatures. No sorceries, instants, or other sneaky tricks—just brawn. Best of all, this brutal army consists of creatures collected from throughout Magic Online history—and you don’t even have to own the cards! Just discard a card and pay any amount of mana to get a copy of a randomly selected creature card with that converted mana cost.
Magic: The Gathering sets